Re: [time-nuts] How hard is it to detect a GPS Jammer?

I for one would insist on complete situational awareness at all times. The alternative is being LOST. That can be bad for one's health. The last time I was willingly lost was when Betty and I were returning from the Palace Real in Madrid and we decided to just start walking to the east. Then

Re: [time-nuts] How hard is it to detect a GPS Jammer?

Le 8 oct. 2013 à 10:29, Chuck Forsberg WA7KGX a écrit : I for one would insist on complete situational awareness at all times. The alternative is being LOST. That can be bad for one's health. That is not the same as not wanting to be FOUND. ___

Re: [time-nuts] How hard is it to detect a GPS Jammer?

And some of them have considerably higher EIRP, Like THIS one, As you can see they are not sophisticated devices they are intended to swamp the real GPS signal, Spoofers would be much harder to detect which is why GNSS systems intended for military use rely on encrypted signals and fairly

Re: [time-nuts] How hard is it to detect a GPS Jammer?

Hi But there's obviously something wrong with the 400 KM number. 1) If +10 dbm is good enough to burry a useful signal at that distance, it should be good enough to communicate at that distance. That's pretty impressive QRP without high gain / directional antennas involved. 2) The radios (at

Re: [time-nuts] How hard is it to detect a GPS Jammer?

On 10/8/13 4:17 AM, Bob Camp wrote: Hi But there's obviously something wrong with the 400 KM number. 1) If +10 dbm is good enough to burry a useful signal at that distance, it should be good enough to communicate at that distance. That's pretty impressive QRP without high gain / directional

[time-nuts] Interesting idea

FYI Follows is a post I picked up off of the Drake Group. It sounds interesting. Paul K. WA0BAG Hello ALL; NASA spacecraft Juno, bound for Jupiter, will have a earth fly-by Wednesday this week. NASA asks all Hams for help with a experiment: http://www.jpl.asa.gov/hijuno/ All you

Re: [time-nuts] Interesting idea

The correct link is http://www.jpl.nasa.gov/hijuno/ David N1HAC On 10/8/13 1:17 PM, Paul K. wrote: FYI Follows is a post I picked up off of the Drake Group. It sounds interesting. Paul K. WA0BAG Hello ALL; NASA spacecraft Juno, bound for Jupiter, will have a earth fly-by Wednesday

[time-nuts] [Fwd: [Boatanchors] FW: [ndblist] WWVB etc]

FORWARDED: Sorry, I could not resist!! 73, Billl, WA2DVU Cape May --- WWVB has been sold to Clear Channel http://www.lownoiserecords.com/wwv_the_tick.html - -John === ___ time-nuts

Re: [time-nuts] How hard is it to detect a GPS Jammer?

It does no good to prohibit clients from using GPS on land because unless you keep them blindfolded the entire time they will see and photograph their surroundings. People with some training can find location to within about 25 feet with no GPS even in a flat dessert. I've hiked out to find a

Re: [time-nuts] How hard is it to detect a GPS Jammer?

On 10/07/2013 01:36 PM, Bob Camp wrote: Hi Anything that will receive up there should be able to tell you when a jammer comes by. The issue is that not a lot of gear is made for that band (other than GPS receivers). The easy approach would be to use a modern GPS module that puts out noise

Re: [time-nuts] How hard is it to detect a GPS Jammer?

Hi Well finding a +10 dbm 1.5 GHz transmitter isn't very hard to do at all. I've got several of those…. Bob On Oct 8, 2013, at 9:42 AM, Jim Lux jim...@earthlink.net wrote: On 10/8/13 4:17 AM, Bob Camp wrote: Hi But there's obviously something wrong with the 400 KM number. 1) If +10